CN201308532Y

CN201308532Y - Olecroanon tension laterally fixing bone fracture plate

Info

Publication number: CN201308532Y
Application number: CNU2008201065338U
Authority: CN
Inventors: 张英泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-13
Filing date: 2008-11-13
Publication date: 2009-09-16
Anticipated expiration: 2018-11-13

Abstract

The utility model relates to an olecroanon tension laterally-fixing bone fracture plate, belonging to the technical filed of orthopaedic medical apparatus and aiming to provide an olecroanon bone fracture plate which provides tension lateral fixing, enhances the fixing intensity and stability of a fracture part and is beneficial to the healing of fracture. The surface of the plate body of the olecroanon bone fracture plate is in an angle steel plate shape along a longitudinal shaft of the plate body, the starting point of the bent angle steel plate is the lower edge of a semicircular abducent bulge, which leads to the rear end of the plate body, and an angle is gradually changed from 110 DEG to 80 DEG from a proximal end to a remote end to accord with a dissection shape of an ulnar crest. The utility model breaks through a planar design idea of a traditional olecroanon bone fracture plate and adopts the angle steel plate surface which accords with the dissection shape of the ulnar crest, thereby really realizing the tension lateral fixing, enhancing the stability of the fixing of fracture and being beneficial to the healing of fracture. In addition, the utility model adopts a scheme beyond the ordinary imagination, obtains unexpectedly good effect and solves a cure problem perplexing olecranal fracture for a long time.

Description

A kind of tension side-fixing bone plate for olecranon process of ulna

Technical field

This utility model relates to a kind of blade plate that olecranal fracture is used for the treatment of, and belongs to orthopaedic medical treatment utensil technical field.

Background technology

The olecranal fracture overwhelming majority belongs to intra-articular fracture, needs open reduction during treatment and implements internal fixation.The effect one that its internal fixation should reach is accurately to reset, and recovers slick articular surface, the 2nd, and fixing should have enough intensity, and the 3rd will recover to stretch normally elbow strength.

At present, common olecranal fracture internal fixation method comprises that Kirschner wire steel wire tension band is fixed and steel plate is fixed two kinds.Kirschner wire steel wire tension band fixedly is according to AO tension band principle, and the change tensile stress is compressive stress, isolating olecranon is closed up and makes fracture end pressurization.Steel plate fixedly comprises reconstruction plate, dissection armor plate, hook plate etc., and is wherein common with dissection armor plate.Therefore in these two kinds of methods, Kirschner wire steel wire tension band fixedly is not suitable for the olecroanon comminuted fracture, it is generally acknowledged that olecranal fracture all answer first-selected steel plate to fix, and especially for comminuted olecranal fracture, is fixed as the best with the selection steel plate.

The olecroanon blade plate that uses at present is the steel plate bar of arced terminus, and steel plate bar front part sides has semicircle abduction protuberance, and the front end of semicircle abduction protuberance is an elbow, and the elbow front end is circular-arc.This olecroanon blade plate major defect in use is: the one, and the steel plate bar plate body of blade plate is more flat, do not meet the ridge shape anatomic form of crista ulnae, in the steel plate implantation process, can only be placed on the surface of bone of a side of crista ulnae, the maximum tension side of ulna is the crista ulnae side, therefore thisly fixedly belong to inclined to one side tension side and fix, this just makes that the tension stress intensity of the ulna of steel plate offside is lower, fixing not firm after the fracture fixation, do not meet the fixed fracture fixation principle of tension side, be unfavorable for the stable and union of fracture of fracturing.The 2nd, circular-arc blade plate termination is difficult for breaking through the triceps brachii tendon at olecroanon place in implantation process, need cut-off parts triceps brachii tendon, the termination of olecroanon blade plate could be implanted, cause performing the operation loaded down with trivial details, the time is long, wound is big, hemorrhage many, and be unfavorable for stretching elbow strength and elbow joint function normally at postoperative recovery.In the face of above-mentioned deficiency, medical worker and patient wish urgently that the technical staff can improve this olecroanon blade plate, to improve therapeutic effect and to alleviate patient's misery.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of can realize tension side fix, strengthen the constant intensity of fracture portions and stability, the healing that helps fracturing and make operation wound little, recover fast fixation, the olecroanon blade plate of facilitating operation.

The technical scheme that solves the problems of the technologies described above is:

A kind of tension side-fixing bone plate for olecranon process of ulna, its plate body is the steel plate bar, the front part sides of plate body has semicircle abduction protuberance, the front end of semicircle abduction protuberance is an elbow, on plate body, semicircle abduction protuberance, bend part has the ailing of implantation hole respectively, its improvements are, the plate body plate face of olecroanon blade plate is the gusset shape along the plate body longitudinal axis, the starting point of the gusset of bending is the lower limb of semicircle abduction protuberance, rear end until plate body, angle, is matched with the anatomic form of crista ulnae to far-end gradual change from 110 ° to 80 ° by near-end.

Above-mentioned tension side-fixing bone plate for olecranon process of ulna, the elbow of described plate body front end extends into taper forward, becomes crooked sharp hook shape, in sharp hook portion the ailing of implantation hole is arranged.

Above-mentioned tension side-fixing bone plate for olecranon process of ulna, the implantation ailing hole of described sharp hook portion are elliptic dynamic pressurization hole.

Successful part of the present utility model is: at first, this utility model has been broken through the planar design theory of traditional olecroanon blade plate, employing meets the gusset face of crista ulnae anatomical shape, during operation, blade plate can be laid and be fixed on the crista ulnae, realization tension side is truly fixed, and has strengthened the stability of fracture fixation, the healing that helps fracturing; Secondly, be sharp hook arc with the head design of plate body elbow, operation is placed in the steel plate process and is easy to thrust the triceps brachii tendon, and its radian meets the anatomic form of normal human's olecroanon and has certain plasticity.Make that operation technique is more convenient, wound is littler, hinder forr a short time, help the incidence rate that postoperative early functional exercise, elbow joint function are especially stretched the recovery of elbow function, reduced post-operative complication stretching the ancon bit loss.

Though this utility model is simple in structure, but adopted the unexpected scheme of ordinary person, obtained beyond thought good result, solved the therapeutic effect problem of long-term puzzlement olecranal fracture, obtained medical worker and patient's very big favorable comment, use should be widely promoted.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 and Fig. 4 are the effect sketch maps that this utility model is fixed on 1/3.

Labelling is as follows among the figure: plate body 1, semicircle abduction protuberance 2, elbow 3, sharp hook 4, implantation ailing hole 5, ulna 6.

The specific embodiment

Show among the figure, steel plate body 1 design of olecroanon blade plate of the present utility model is to finish according to the anatomic form employing gusset of crista ulnae, the starting point of bending is the lower limb of semicircle abduction protuberance 2, rear end until plate body 1, angle, is consistent with the anatomic form of crista ulnae to far-end gradual change from 110 ° to 80 ° by near-end.After adopting this shape, when operation plate body is covered on the crista ulnae, will implant the nail implantation and fix, realization tension side is truly fixed, and has strengthened the stability of fracture fixation, the healing that helps fracturing.

Also show among the figure, on the basis of existing olecroanon blade plate, elbow 3 is become the design of head point hook 4 arcs, make its radian meet the anatomic form of normal human's olecroanon, operation is placed in the steel plate process and is easy to thrust the triceps brachii tendon, make that operation technique is more convenient, wound is littler, hinder littler stretching the ancon bit loss.

The implantation ailing hole 5 that shows among the figure is: 2 of 2 round screws that are suitable for 3.5 millimeters screws of walking crosswise arrangement are arranged on the semicircle abduction protuberance 2 of blade plate; Having 4 nail holes from the plate body 1 of semicircle abduction protuberance below 2 and arrange vertically, wherein is 2 of round screws that are suitable for 3.5 millimeters screws in the nail hole at two ends, middlely is 2 of the elliptic dynamic pressurization screws that are suitable for 3.5 millimeters screws; Elbow 3 has 1 of the elliptic dynamic pressurization screw that is suitable for 3.5 millimeters screws.

What Fig. 3,4 showed is that this utility model is fixed on the effect sketch map on the ulna 6.As we can see from the figure, sharp hook 4 bendings of olecroanon blade plate are attached to the end face of head of ulna, and the plate body 1 of blade plate covers on the crista ulnae, the both sides of plate body 1 bending downwards and ulna 6 both sides match.

Claims

1. tension side-fixing bone plate for olecranon process of ulna, its plate body [1] is the steel plate bar, the front part sides of plate body [1] has semicircle abduction protuberance [2], the front end of semicircle abduction protuberance [2] is elbow [3], on plate body [1], semicircle abduction protuberance [2], elbow [3] position has the ailing hole [5] of implantation respectively, it is characterized in that: the plate body of olecroanon blade plate [1] plate face is the gusset shape along plate body [1] longitudinal axis, the starting point of the gusset of bending is the lower limb of semicircle abduction protuberance [2], rear end until plate body [1], angle, is matched with the anatomic form of crista ulnae to far-end gradual change from 110 ° to 80 ° by near-end.

2. tension side-fixing bone plate for olecranon process of ulna according to claim 1 is characterized in that: the elbow [3] of described plate body [1] front end extends into taper forward, becomes crooked sharp hook [4] shape, in sharp hook portion the ailing hole [5] of implantation is arranged.

3. tension side-fixing bone plate for olecranon process of ulna according to claim 2 is characterized in that: the implantation ailing hole [5] of described sharp hook portion is elliptic dynamic pressurization hole.